ITT Cannon DL Series Connectors

HIGH-DENSITY ZIF DL CONNECTORS

ITT Cannon DL series connectors are versatile, high-density ZIF connectors (zero-insertion force) with 60 contact, 96 contact and 156 contact versions. The DL series are excellent medical connectors and are suited for other applications requiring no sliding force during mating and unmating, such as sound, lighting and entertainment equipment. The new ITT Cannon DLM shielded metal connector offers a stronger, light-weight aluminum housing that is nickel-plated for maximum shielding. For more details on the ITT Cannon DL series of zero-insertion force (ZIF) connectors, please see the product specifications below.

New Nickel-Plated Aluminum Housings
The DLM1/2/3 (60, 96 & 156 pin) versions are now available in a strong metal shell, fully EMI/RFI shielded version that can mate with the standard plastic housing version. This allows for easy upgrade to a shielded version without sacrificing intermatability of units already in the field.

Contact Wiping
During mating, the contacts wipe lightly together, which helps clean the contact mating area and assures low contact resistance needed for digital or low current applications.

The Ambient Temperature Curves shown represent the rated current carrying capacity of the Cannon DL1/2/3/4, DLM1/2/3, and DLD1/2 electrical connectors, derated to 80% of the value recorded using the methods specified by International Electro-Technical Commission Document 48 (1975). Current was applied to the total connector (all contacts) in one-half ampere increments and maintained at each current level until thermal stability was achieved. A thermocouple inserted into the “hottest area” of each connector then measured the connector temperature at the same time that an ambient temperature reading was taken. The difference between the two measured values is the heat rise or self-heating created solely by the current flow; this temperature rise for the current level was deducted from the insulator material rated temperature. These values were then derated to 80% to obtain the curves shown.

For the PC/RC Versions: The contact tail design has been modified from a 0.64 (.025) square pin to a 0.05 (.020) diameter round pin. The change enables a decrease in the diameter of the through holes as well as the solder mounds on PCB’s (d1, and d2 can be wider than D1 and D2). This can reduce the crosstalk in RF circuits and enhance the dielectric withstanding voltage in high voltage circuits.

The soldering of contacts into through (THRU) holes on a PC Board has become standard for medical equipment and test equipment for semi-conductors. As a result of the narrow spacing between the solder pad and circuit pattern, crosstalk between signals increases. A solution to this problem is to make the diameter of the contacts and solder lands smaller to provide more space between the lands and the patterns. However, a smaller diameter contact results in higher impedance.

ITT Cannon designed a solution with a smaller diameter contact tail. This design application allows the use of a smaller through-hole diameter.

ITT CANNON DL SERIES CONNECTORS CRIMP CONTACT ASSEMBLY

Contact Insertion:All crimp contacts are inserted by hand. No tooling is required for either the plug or receptacle.

Caution:Do not force contacts into contact cavities. If contact encounters excessive resistance during installation remove and re-insert using a slight up and down motion. This will assure positive cavity alignment. Do not install contact if plug is in the closed or actuated position.

PLUG:

STEP 1: Prior to inserting contacts, turn the shaft counter-clockwise to its maximum open position.

STEP 2: With the retention lance positioned away from the shaft, insert contacts from the rear of the plug.

RECEPTACLE:

STEP 1: With the retention lance positioned toward the shaft hole, insert contacts from the rear of the receptacle.

ITT CANNON DL SERIES CONNECTORS CRIMP CONTACT REMOVAL

Tool: CET-DL10

Release retention lance by inserting tip of extraction tool into cavity until it bottoms on insulator shoulder. Gently pull wire in direction of arrow, see illustration, to remove contact from Insulator.

ITT CANNON DL SERIES CONNECTORS BUSS CONTACT ASSEMBLY

Contact Insertion:All buss contacts are inserted by hand. No tooling is required for either the plug or receptacle.

Caution:Do not force contacts into contact cavities. If contact encounters excessive resistance during installation remove and re-insert using a slight up and down motion. This will assure positive cavity alignment. Do not install contact if plug is in the closed or actuated position.

PLUG:

STEP 1: Prior to inserting contacts, turn the shaft counter-clockwise to its maximum open position.

STEP 2: With the retention lance positioned away from the shaft, insert contacts from the rear of the plug.

RECEPTACLE:

STEP 1: With the retention lance positioned toward the shaft hole, insert contacts from the rear of the receptacle.

ITT CANNON DL SERIES CONNECTORS BUSS CONTACT REMOVAL

Tool: CET-DL3/4/5/6Release retention lance by inserting tip of extraction tool into cavity until it bottoms on insulator shoulder. Gently remove buss contact in direction of arrow, see illustration, to remove contact from insulator.